Tailcan

Tailcan compares canned cat food using only what is printed on the label. Pet food labels don't list carbohydrate and give phosphorus as a vague percentage, so Tailcan estimates carbs as 100 minus protein, fat, fibre, moisture and ash, converts everything to a share of calories, and turns phosphorus into milligrams per 100 calories. The result is a table of 144 cans from 15 brands, from Fancy Feast and Friskies to Ziwi Peak, with shortlists for low-carb, lower-phosphorus, high-protein, kitten, chicken-free and fish-free food. Calculators estimate carbs from a label and how many cans a cat needs a day. Each recipe page links the label source and the date it was checked, and the full table is downloadable as a CSV under a Creative Commons licence. The site says brands can't pay for placement, that it isn't veterinary advice, and that owners should ask a vet before changing a sick cat's diet.